Adjustable window particularly for automobiles



May 22, 1928. f 1,670,595

H. T. PLUMMER ADJUSTABLE WINDOW PARTICULARY FOR AUTOMOBILES Patented May 22, 192$. p

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HERBERT TI-IGMAS rL'UMMn-R, or UPPER 'roorrne, Lennon, ENG A D; AssIe-non T BAWLINGS IVIANUFACTUEIHG ooiareiar or ennon, nner inn, A BRrr- ISH COMPANY.

ADJUSTABLE winnowrearrcutnnmr For: AUTOMOBILES.

Application filed July 23,1926, Serial No.

ii l'iisinvention relates to adjustable \vindows and has particular reference to thead- JUStHlOlG windows of automobiles and has for chief object to provide asimple eifeca tive and inexpensive form of, braking device to retain the window at any desired height.

According to the present invention the braking-device COIDPIISGSBII eccentric sleeve frictionally mounted upon a member which is itself rotated by the raisingand-lowerlng of the window so that the rotation of said.

-member tendsto carry.thejeccentric sleeve with it. The invention is'particularlyapplicable to window raising'inechanismof the spring barrel types, in which case theraforesaidsleeve is of course convenientlymounted on the barrel. l a

The invention will IIOW'bB described more bodiment illustrated in the. accompanying drawings in which 1 =1 Q 1 Figure 1 is a front view of an automobile door having a vertically slidingwindow,

of the more essential parts, and

Figure 3 illustrates a modification.

The door has a hollow lower part 1 in which the window 2 disappears when lowered and. is provided with a known form of window-raising mechanism of the automatic lifting type comprising' a horizontal spring actuated barrel 3 on whichlifting cordv 4: winds and unwinds itself. 5 is the eccentric sleeve which is mounted on the barrel 3 with slight frictional adherence preferably at about the mid point in'the length of the barrel and is provided with a handle 6 for manually tilting it upon the barrel. Assuming that the barrel when raising the window rotates about its axis upwards and away from the adjacent face of the window, then the eccentric sleeve is normally situated as shown with its greatest radius somewhat be low the horizontal plane passing through the barrel axis; the said sleeve is also of such a size that at and near its smallest radius it is spaced away from the adjacent face of fully with reference "to thepreferred. em=

Figure 2 is an enlarged fragmentary view 124,530, and in Great iii-min June 2,1926.

barrcl, to raise the glass. further merely increasesthe wedging effect of the engagement between the sleeve and the glass. The glass is thus effectively held against furtherrise.

Entrus In orderto, release the glass, the sleeve 1 is manuallyturned .away from its wedging engagementavith the glass by tipping-the i handle 6 upwards, and to enable the glass to automaticallytravel upwards to any desired extent the handle. is imerely held tipped for .a correspondinginterval. To arrest theupward travelof the glass at any desired height the handle 6 of the eccentricslee've is merely released,.whereupon the frictional I drive between it and the barrel immediately sweeps it intov .a window-arresting position.

. Any conve 'iien'tv form of handle may; he 2 employed and itinay if desired beQdeliber-- ately weighted and located so that when re-- leased it, actswby its leverage to;

,assistthe frictionaldrivc 'ofthebarrel.

The surface of the eccentric sleevefmay be covered with any suitable gripping and cushioning material 8 such as "rubber.

y it may be observed that an important ad vantage of this simple and reliable form of braking device is that theraising and lower,- ing of the Window canbe effected with one hand. To raise the window it-isonlyneces.

sary to keep the eccentric sleeve handle tipped while the springbarre'l rotates and lifts the W-lIlClOW. To lower the window it is only necessary to push the window downa In the case of raising the window the rise is arrested merely by releasing the eccentric sleeve handleyand in the case of lowering the window it is merely necessary to remove the downward pressure of'the hand on the when it hasbeen lowered to the desired extent. j

The wedging effect of thebraking device above described is so effective that creeping of the window duringexcessive vibration of the automobile is prevented.

It is to be understood 'that'the invention is notlimited to the specific embodiment above described. For example, instead of using single eccentric sleeve midway along q I 105 the barrel the'sle'eve may be placed elsewhere or we mayemploy two or more sleeves so connected as to be operable by a single handle. J v

In Fig. 3 a modified form of sleeve '5 and handle 6 havebeen illustrated.

What I claim is 1. In slidable window raising and lowering mechanism, a cylindrical member rotatable adjacent the window by'the raising and lowering movement, a sleeve eccentrically mounted rotatablyon the cylindrical surface of said member with slight frictional adherence thereto, and a handle for moving I the sleeve around the said member.

-2.* In slidable windowraising and lowering mechanism, a cylindrical member rotatable alongside the face of the window about a horizontal axis by the raislng and lowering movement, a sleeve rotatably nlounted on the cylindrical surface of said Window as the window is raised.

member with slight frictional adherence with the' por-tion of its periphery remotest from the 'said axis located below the horizontal plane passing through said axis, and a handle for rockmg the sleeve on said mem-' her, the dlstance of' the rotatable member and sleeve ther on from the face ofthe win- 'd'owbeing such that the portion of its pe-' riphery remotest from the said axistends automatically to engage with the face of the 3.-In slidable-window raising and lowering mechanism of the spring barrel type, the combination with the spring barrel, of a sleeve rotatably mounted thereon with frictionaladherence, and-a handle on said sleeve for manually rocking it upon the surface of the barrel.

4. In slidable window raising and lower ing mechanism, the combination with a spring actuated rotatable barrel mounted i horizontally adjacent the face of the window, of a sleeve mounted rotatably and eccentrically on said barrel and of such d1- mensions that its portion of greatest radius,

from the barrel. axis/takes a wedging encentrically on said barrel and of such dimensions that its portion of greatest radius from the barrel axis is normally situated below the horizontal plane passing through the barrel axis and adjacent the face of the window so as to become wedgingly engaged therewith when the barrel rotates upwardly and outwardly away from the said face, and

a handle for manually rocking said sleeve I in the opposite direction-to temporarilysuppress the wedging engagement.

In testimony whereof 'I have signed my name to this specification.

HEBBER-TTHOMAS PLUMMERQ 

